[单选题]______ you return those books to the library immediately, you will have to pay a fine. A Until B Unless C If D Provided
发布时间:2024-06-01 16:09:15
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You do not need to give the return processes in its entirety unless you need to comprehend the system.
B:Unless you need to understand the system,fully show the return lines.
C:Return procedures need not be shown completely if you need to realize the system.